74HC374集成電路（IC）的觸發(fā)器規(guī)格書(shū)PDF中文資料

1. General description

The 74HC374; 74HCT374 is an octal positive-edge triggered D-type flip-flop with 3-state outputs.

The device features a clock (CP) and output enable (OE) inputs. The flip-flops will store the state

of their individual D-inputs that meet the set-up and hold time requirements on the LOW-to-HIGH

clock (CP) transition. A HIGH on OE causes the outputs to assume a high-impedance OFF-state.

Operation of the OE input does not affect the state of the flip-flops. Inputs also include clamp

diodes, this enables the use of current limiting resistors to interface inputs to voltages in excess of

VCC.

2. Features and benefits

? Wide supply voltage range from 2.0 to 6.0 V

? CMOS low power dissipation

? High noise immunity

? Input levels:

? For 74HC374: CMOS level

? For 74HCT374: TTL level

? Octal bus interface

? Non-inverting 3-state outputs

? 8-bit positive, edge-triggered register

? Common 3-state output enable input

? Independent register and 3-state buffer operation

? Complies with JEDEC standards

? JESD8C (2.7 V to 3.6 V)

? JESD7A (2.0 V to 6.0 V)

? Latch-up performance exceeds 100 mA per JESD 78 Class II Level B

? ESD protection:

? HBM JESD22-A114F exceeds 2000 V

? MM JESD22-A115-A exceeds 200 V

? Specified from -40 °C to +85 °C and -40 °C to +125 °C